Help! 2.0tdi (140) limp and lots of faults that don't clear...

[VAG-Slag]

So my 140 tdi threw a hissy-fit this morning and went into limp... Gave it a scan when I came back and all these cropped up:

8 Faults Found:

19794 - Control Circuit for Glow Plug Controller 1

P3338 - 000 - Electrical Malfunction
Freeze Frame:
RPM: 0 /min
Torque: 130.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.31 V
Bin. Bits: 00000110
Temperature: 6.3°C
Bin. Bits: 00010000



17903 - Switch-Over Valve for EGR Cooler (N345)

P1495 - 000 - Open or Short to Ground
Freeze Frame:
RPM: 0 /min
Torque: 130.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.31 V
Bin. Bits: 00000110
Mass Air / Rev.: 1050.0 mg/str
Mass Air / Rev.: 0.0 mg/str



19557 - Motor for Intake Manifold Flap (V157)

P3101 - 000 - Open or Short to Ground
Freeze Frame:
RPM: 0 /min
Torque: 130.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.31 V
Bin. Bits: 00000110
Torque: 0.0 Nm
Torque: 351.4 Nm



16629 - Solenoid Valve for Boost Pressure Control (N75)

P0245 - 000 - Short to Ground
Freeze Frame:
RPM: 0 /min
Torque: 130.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.31 V
Bin. Bits: 00000110
Absolute Pres.: 183.6 mbar
Absolute Pres.: 999.6 mbar



16627 - Solenoid Valve for Boost Pressure Control (N75)

P0243 - 000 - Malfunction - Intermittent
Freeze Frame:
RPM: 1008 /min
Torque: 32.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 11.86 V
Bin. Bits: 11000100
Absolute Pres.: 1030.2 mbar
Absolute Pres.: 969.0 mbar



19557 - Motor for Intake Manifold Flap (V157)

P3101 - 000 - Open or Short to Ground
Freeze Frame:
RPM: 0 /min
Torque: 130.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.31 V
Bin. Bits: 00000110
Torque: 0.0 Nm
Torque: 351.4 Nm


16955 - Brake Switch (F)

P0571 - 000 - Implausible Signal - MIL ON
Freeze Frame:
RPM: 882 /min
Torque: 30.0 Nm
Speed: 7.0 km/h
Load: 0.0 %
Voltage: 14.29 V
Bin. Bits: 11000110
Torque: 146.4 Nm
Bin. Bits: 0 01 0


19558 - Motor for Intake Manifold Flap (V157)

P3102 - 000 - No Signal
Freeze Frame:
RPM: 0 /min
Torque: 90.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.24 V
Bin. Bits: 00000100
Torque: 0.0 Nm
Torque: 351.4 Nm



I've tried clearing the faults and they all come back straight away... Whats people thoughts?

 

[VAG-Slag]

Anyone???

I've checked all fuses as it seems weird there's so many "open or short to ground" type faults, and the fact I can't clear any of them... All fuses ok though

:-/

 

[SAiLO]

Anyone???

I've checked all fuses as it seems weird there's so many "open or short to ground" type faults, and the fact I can't clear any of them... All fuses ok though

:-/

Is your battery OK?

Sent from my LG-H870DS using Tapatalk

 

[VAG-Slag]

Is your battery OK?

Sent from my LG-H870DS using Tapatalk

Yea, I've been limping to and from work since Monday, which is about 20 miles each way... Never struggles to start or anything. Just got Christmas tree dash no power!

 

[DJAlix]

Looks like you have some wiring issues going on there. Short to Ground normally means "broken connection". Would start by looming at your looms and connectors in order to see if there are any breakages. It could also be that you have faulty connector housings also, or something has come loose...

 

[VAG-Slag]

SOLVED!!!


So we had a bit of a poke around last night… With the amount of faults around the intake manifold flap the first thing we tried was plugging in a new one and seeing if that changed anything – and nothing!


Next we checked the ECU and all the wiring around there, and it was clear someone had been there before (looks like it might have been wet in there at some point also)… Pretty quickly though we found a badly corroded terminal behind the ECU and a fuse that was also corroded and had obviously been getting hot. Cleaned all that up and faults cleared straight away. . .


Jobs a goodun! Pleased it was a cheap fix, thanks everyone for your input